Regardless of Sevilla's current form in both the league and in the UEFA Champions League, playing against them in an European game at the Ramon Sanchez-Pizjuan Stadium is one of the scariest matches for any European club because Sevilla are always playing at their best whenever they're playing an European game in front of their home fans.
Arsenal I think knows truly well of the kind of task they're trying to execute and I think Mikel Arteta's men are ready for the encounter. On papers, Arsenal are the favourites to win that game but they must be at their best to take all three points from that game
So basically it is quite difficult for Arsenal to get the full three points against Sevilla. I'm pretty sure that this match has a tense intensity. Sevilla can overwhelm Arsenal even with ideal players. Personally, I would not underestimate Sevilla if they were playing at home. This is a tough task for Arteta and his troops to better control their emotions and be calm. As usual, the mentality of Arsenal players will always be tested and in the Champions League competition it will not be the same as what they experienced in the Premier League.